FT MEADE 
GenColl 


TR 810 
. E3 

Copy 2 


MANUAL OF INSTRUCTIONS 

FOR 

TYPE “L” 
AVIATION 
CAMERA 


American Model 

> I 








% 


1 


INSTRUCTIONS 

FOR 

TYPE “L” AVIATION 
CAMERA 

American Model 









INSTRUCTIONS FOR TYPE “L” 
AVIATION CAMERA 


SEMI-AUTOMATIC PLATE CHANGER 


1. The general principles of this camera are somewhat similar to 
those incorporated in the Types “C” and “E” Aviation Cameras. 

2. (a) A magazine containing the unexposed plates is placed 

directly above the exposure aperture, the plates falling into 
position as required. 

3. (b) The exposed plate is moved along horizontally until op¬ 

posite the receiving magazine, which is attached in an in¬ 
verted position to an extension of the camera. 

4. (c) Exposure by focal plane shutter with separate capping de¬ 

vice. 

5. In the “L” Type Camera, changing the plate and setting the 
focal plane shutter is one operation, and this may be accomplished either 
by hand or automatically by the action of wind on a propeller, at the will 
of the operator. 

6. Changing by hand Operation. Fig. 1 shows a general view of the 
apparatus arranged for hand operation. 

7. The magazine 580A is loaded in the dark room and placed in 
position on runners provided on top of the camera. A second empty 
magazine 580B is placed beneath an extension of the camera in the posi¬ 
tion shown. 

8. A hand lever 599 on the side of the camera operates the plate 
changer and at the same time sets the focal plane shutter. This lever 
must be moved backwards and forwards once to set the shutter before 
opening the magazines. The magazine is opened by releasing the catch 
on the metal slide and drawing the slide towards the square end of the 
magazine until the catch engages. 

9. To expose a plate, depress the knob 627 smartly to its extreme 
position and release. Then immediately “change the plate” by operating 
the hand lever. Before removing either magazine, pass all unexposed 
plates to the lower magazine. See that receiving magazine is fully open 
before placing on the camera. Also in unloading the camera, see that 
magazines are closed before removing same. This is most important to 
avoid fogging the plates. 

AUTOMATIC CHANGING 

10. Fig. 2 sh< 
matic operation. 

11. The prim 


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DOCUMENTS DIVISION 







Type “L" Aviation Camera 


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Figure 1 













Type “L” Aviation Camera 


(a) A series of photographs may be taken by the simple 
operation of a lever for each exposure. 

(b) The camera may be operated from a distance by a 
cable release. 

(c) The operator is relieved of the responsibility of manip¬ 
ulating the camera mechanism. 

12. Should it be necessary to use the cable release, it is essential 
that it be attached to the camera before setting the shutter or opening the 
loaded magazine, as the action of attaching the cable is liable to release 
the shutter. 

13. Lay the cable out straight and push the brass end into the bot¬ 
tom end of the plunger tube, slip the looped end of the cable over the stud 
provided on the plunger, securing same in position with the brass knurled 
nut. 

14. The magazines having been placed in position and the shutter 
set in the manner previously described in paragraph 8, unscrew the 
shutter setting lever pin, No. 653, from its position F in the shutter set¬ 
ting operating plate, and screw into the hole G provided in shutter setting 
lever. The motive power for making the change is provided by a pro¬ 
peller No. 868 pivoted on a ball journal bearing No. 834, and driven by 
the draft from the engine propeller or the current of air occasioned by the 
speed of the machine. A flexible double coil spring shaft running in the 
casing No. 838 transmits the power to the changer mechanism. The 
flexible drive is attached to the camera by means of a milled nut locked 
in position by a spring to prevent the nut becoming accidentally de¬ 
tached. After the flexible drive has been attached to the camera, turn the 
propeller by hand a sufficient number of times to perform the complete 
cycle of changes, in order to be sure that the shaft is properly connected. 

15. Moving the lever No. 572 releases the shutter and exposes the 
plate. When the lever is released, and not before, the changer gear is 
automatically engaged with the drive from the propeller, and the plate 
changed and shutter set for the next exposure. Further, by the action of 
the interlocking cam and lever, fully described in paragraphs 55, 56 and 
57, the plunger is locked in such a manner that it can be depressed once only 
for each plate set in position. This device has been rendered necessary 
owing to the fact that it would be possible otherwise to open the shutter 
while changing the plate. With an air velocity of, say, 50 miles per hour 
on the propeller, a plate is changed in approximately 10 seconds, the 
maximum rate of change likely to be required with a minimum air pres¬ 
sure. Provided the propeller is not altered in any way, the speed of plate 
change is increased in direct proportion to the air velocity. 

16 Changing from power to hand operation. The shutter setting 
lever pin No. 653 should always be left in either the position for hand or 
power operation. Should, however, the plunger be depressed when the 
screw is hanging idle, proceed as follows to connect for hand operation. 

17. In order to insert the shutter setting lever pin No. 653 in the 
socket “F” (Fig. 2) for hand operation, it is necessary to operate the 




o 


Type “L” Aviation Camera 



Figure 2 


























6 


Type “ L ” Aviation Camera 


mechanism until the opening in gear wheel No. 597 is in alignment with 
the opening “F” in the gear case cover. This can be accomplished by 
inserting a small metal rod or wire nail in the socket for the flexible shaft 
connection and turning the spindle until the two openings are in align¬ 
ment. The same result can be obtained by attaching the flexible shaft 
and turning the propeller by hand until the pin can be properly inserted. 

ATTACHING THE CAMERA TO PLANE 

18. The camera is designed to enable it to be carried on either:— 

(a) The out-board fitting, for which purpose two tubes are 
carried right through the body of the camera, so that it 

can be bolted to the fitting, or 

(b) It may be supported on a “floor support” resting on the 
projecting lips at each end of the camera body. 

(c) A cradle is supplied for fitting the camera in certain 
types of planes either in front of or behind the observer. 

Special instructions for the installation of cameras on these 
three kinds of supports are furnished in a separate leaflet. 

MAGAZINES 

19. These are constructed entirely of metal to hold twenty-four 
(24) plates only. A strap is provided to enable the operator to more 
easily attach and remove the magazine from the camera. This strap can 
also be utilized as a carrying handle. Before loading, the septums should 
be counted and carefully inspected. If any of the septums are bent or 
dented, they should be repaired before using. A septum forming out¬ 
fit and mallet are provided for this purpose. When loading the septums, 
it is of the utmost importance that the plates are of the correct size. If 
the plate is too wide, it will ride on the turned up lip at the edge of the 
septum, causing the camera to jam. The septums should be placed in 
the magazine with the open edge towards the metal instruction plate 
attached to the side of the magazine and the plates must be placed in the 
septums and the loaded septums in the magazine with the emulsion side 
up, as indicated in Fig. 3. 

20. Fig. 3 shows the correct method of placing the septums in the 
v magazine. 

21. In view of the fact that the whole action of the camera is depen¬ 
dent on the plates falling into position with certainty, the above para¬ 
graph on dark room manipulation of plates, septums and magazines 
should be carefully observed. 

SHUTTER 

22. An adjustable aperture focal plane shutter is employed. This 
shutter is equipped with a sliding saddle and cords to adjust the width of 
the opening. Shutter is arranged as close as possible to the plate, being 
actually je" from the emulsion, thereby obtaining the highest possible 
light efficiency. 

23. Fig. 4 shows a view of the spring tension. The left hand gear 
shaft crank No. 663 is connected to the shutter spring by multiplying 
gearing, enabling twenty turns to be given to the spring by one revolu- 





Type “L Aviation Camera 


27 / 



Figure 3 






























8 


Type “L” Aviation Camera 


tion of the crank 663. In the position shown, shutter spring is set at the 
minimum tension, thus enabling the opening in shutter to be adjusted to 
any desired width. 

24. To increase the tension, pull the knob and turn lever in clock¬ 
wise direction. 

25. The following actual shutter speeds have been obtained b> 
taking the average of tests on several cameras. 

26. SHUTTER SPEED TABLE 


Tension 

Curtain Apertures 


1 

2 

3 

4 

No. 1 

35 

45 

53 

85 

No. 2 

45 

50 

70 

110 

No. 3 

50 

60 

85 

125 

No. 4 

60 

65 

90 

145 


LENSES 

27. A sectional view showing the arrangement of lenses and ad¬ 
justment tubes is shown in Fig. 5. 

28. On account of the variety of lenses of different makes and sizes 
used in this camera, it is necessary to provide several sizes of lens tubes, 
diaphragms and adapters to accommodate them. A table showing the 
parts used with the various lenses arranged in series is given in Fig. 5. 

29. These groups are comprised of the following lenses: 

30. Lens Series No. 0: 

5x7 Cooke Anast. Series II. 

Lens Series No. 1: 

5x7 Cooke 

8-34" Focus Goerz Dogmar. 

5x8 Goerz Dogmar. 

5x8 Carl Zeiss Jena Tessar. 

No. 16-5x8 B&L Zeiss Tessar I-C F-4.5. 

Lens Series No. 2: 

8-34" Focus Heliar lens. 

6-34 x8-34 Carl Zeiss Jena Tessar. 

No. 17-6-34x8-34 B&L Zeiss Tessar I-C F-4.5. 

Lens Series No. 3: 

6-34x8-34 Carl Zeiss Jena Tessar. 

1034" Focus Zeiss Tessar Ross. 

210 M. M. Carl Zeiss Jena Tessar. 

8-34" -21 C. M. Carl Zeiss Jena Tessar. 

10" Carl Zeiss Jena Tessar. 

934" Goerz Dogmar. 














Type “L” Aviation Camera 


9 



Figure 4 

















10 


Type “L” Aviation Camera 


10%" Goerz Dogmar. 

9%" Steinheil Triplar F-3.8. 

63^x83^ Cooke Anast. Series II. 

10" Cooke Anast. Series II. 

93^" Heliar lens 

24 C. M. Heliar lens. 

Lens Series No. 4: 

No. 18 8x10" I3&L Zeiss Tessar I-C F-4.5. 

11%" Focus Heliar lens. 

12" Heliar lens. 

30 C. M. Heliar lens. 

31. After the lens has been accurately focused. Unit 96 is used to 
lock the lens adjusting sleeve to the camera. U-258 serves as a protec¬ 
tor for the end of this sleeve. 

32. Focusing. The camera is focused upon assembly at the fac¬ 
tory; should it become necessary, for any reason, to re-focus it, the fol¬ 
lowing procedure is to be observed. 

33. For this purpose a special septum, ground glass focusing screen 
and focusing magnifier are provided in each repair kit. The septum is 
similar to those regularly used, except that a rectangular opening 2x3" is 
cut in the middle of the back to permit of observation of the image fall¬ 
ing on the focusing screen. On the central portion of the ground glass 
surface are two crossing pencil lines. Over these pencil lines is cemented a 
thin glass plate. 

34. For focusing, it is necessary to entirely release the tension on the 
shutter; this may be accomplished by removing the small screw shown on 
Fig. 4 on the shutter tension dial. This will allow the lever to rotate 
counter clock-wise beyond the zero tension. Having done this, the shut¬ 
ter curtain will stay in any desired position. The slit should be made at 
least an inch wide and brought to a position corresponding to the middle 
of the plate. 

35. The focusing screen is now placed in the special septum with 
the ground surface in the position ordinarily occupied by the photo¬ 
graphic emulsion. The septum and screen are then put in the focal plane 
of the camera with the ground glass surface toward the lens. The image 
of a suitable object, a mile or more distant, is next caused to fall on the 
focusing screen (the light passing through the curtain opening) where it 
may be observed by the aid of the magnifier, which is so focused that the 
pencil lines appear very sharply defined. 

36. The eye and magnifier are then moved back and forth side- 
wise, maintaining the contact of the magnifier with the glass, and care¬ 
ful note taken as to whether the image of the distant object moves with 
regard to the pencil mark. If it does move, the lens is not properly 
focused and must be screwed in or out by turning the lens adjusting sleeve 
811, Fig. 5. If the image of the distant object moves in the same direc- 






11 


Type “Z” Aviation Camera 



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2 

3 

4 

Le/?$ Tu/be. 

697 

25b 

254 

650 

863 

D/aphragm. 

237 

257 

255 

\AST 

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J5S* 

Adapter. 

8 09 

309 

609 

QIO 

692 


Figure 5 























































































12 


Type “L” Aviation Camera 


tion as the eye, the lens is too far away from the plate; if it moves in the 
opposite direction to that of the eye, the lens is too close to the plate. 
When there is no observable relative motion between the line and the 
image of the distant object as the eye is moved back and forth, the lens 
is properly focused and the lens adjusting sleeve must be locked in posi¬ 
tion by screwing down unit 96. This method is called focusing by paral¬ 
lax. 

37. It sometimes happens that due to the vibration of the plane, 
one of the lens cells may become loosened and partially unscrewed. This 
will seriously disturb the definition and give pictures lacking in sharp¬ 
ness. If at any time out of focus pictures are obtained, care should be 
taken before re-focusing, as outlined above, to see that all lens components 
are tight. 

38. Color Filters. Depending upon light conditions, color filters 
may or may not be used. Filters of two sorts Kl and K2 are. supplied 
with the camera. They are in the form of thin gelatine films about three 
inches square and for use they must be trimmed to a circular disc, which 
will fit in the lens mounting, as shown in Fig. 5. To use a filter, it is 
necessary to unscrew the front lens or lenses and insert the filter in the 
position shown. If there is a catch or a screw of any sort holding the 
front lens cell in place, it must be removed. After the filter is in place, 
care must be taken to see that the front lens cell is properly replaced, screwed 
home securely and locked, if a locking device is provided. After insert¬ 
ing the filter, the focus of the camera should be verified. The gelatine 
film filters are very delicate and should under no circumstances be touched 
by the fingers. Grease or moisture from the hand will render them use¬ 
less. In cutting and handling, they should be held between sheets of 
paper. 

CABLE RELEASES 

39. Method of attaching this to the camera is described in the 
general instructions given in Paragraph 13. 

40. In use the cable must be kept as straight as possible, but, if 
abend is unavoidable, this must be allowed as large a radius as con venient. 

41. An adjustment is provided, in the event of the cable stretching, 
by means of a nut with locknut at the point of attachment to the swivel 
on the hand lever. When making an adjustment, care must be taken to 
see that the plunger is allowed its full travel. This should be tested with 
the camera in position on the aeroplane. 

42. An indicator is incorporated with the release which records the 
number of exposures made. Before attaching the cable to the camera or 
opening the loaded magazine, set the indicator at zero by turning the 
Counterset Button No. 886. (See Fig. 2). 

43. It is usual to fix the release in the observer’s cockpit, clamping 
the base plate to the vertical support on the left hand side. If desired, 
however, cord or wire can be attached to a groove in the top of the hand 
lever and led to a convenient position for the pilot to operate the camera 
himself. 




13 


Type “L” Aviation Camera 



Figure 6 





u 


Type “//’ Aviation Camera 


PROPELLER DRIVE 

44. To attach this to the camera, first see that the driving dog No. 
828 on the end of the inner shaft is in correct engagement with the camera 
mechanism and slip the loose collar 835 into the recess in the camera 
flange. Screw the nut 825 up as tight as possible, testing the propeller 
at the same time for signs of binding. This should revolve quite freely 
unless the exposure plunger has been depressed, in which case the driving 
gear will be in engagement, and the exposure and changer mechanism 
will make one complete cycle of operations before the propeller again 
runs free. This cycle of operations is fully described in paragraph 57. 

45. Journal 834 carrying the propeller must be rigidly attached to 
the aeroplane in a position in which the propeller will receive a continuous 
current of air. This is essential in order that the propeller revolves at 
sufficient speed to change the plates in not more than ten seconds. Un¬ 
less the journal is properly adjusted it may have a tendency to revolve 
under the influence of friction from the internal shaft and this will damage 
the outer casing. If possible, it is as well to stay the casing at one or two 
parts in its length to the aeroplane to prevent excessive vibration. 

46. The position in which the camera is carried and the construc¬ 
tion of the aeroplane will determine the method of attaching the propeller. 
In the event of it being found advisable to fit the propeller to the rear of 
the camera, a spare propeller is provided with the blades set at the 
reverse angle to the one usually employed. This permits of the shaft 
being placed in a trailing position with an “easier” bend than might 
otherwise be possible. The propellers are marked “R.H.” (right hand) 
and “L.H.” (left hand). 

47. The method of attaching the propellers to the shaft by gripping 
same between two large fibre friction washers, 814 and 821, provides a 
cushion drive which prevents damage to the camera mechanism should a 
broken plate cause the machine to jam. 

48. In fitting the propellers, care must be taken that these are 
placed the correct way on the spindle. The propellers are marked R.H. 
(right hand) for the forward drive and L. H. (left hand) for trailing drive. 
Care must be taken to select the correct propeller. In looking at the 
propeller end of the flexible shaft, this must rotate in a clockwise direc¬ 
tion in order to give the correct movement to the camera. 

CAMERA MECHANISM 

49. The action of transferring the plates from the top magazine to 
the lower receiving magazine is accomplished by means of a flat sliding 
carrier 833 (shown in the part list). 

50. The plates drop out of the top magazine into hole cut in this 
carrier which is arranged to rest in a position directly above the exposure 
aperture. This carrier is operated by gear wheels engaged with toothed 
racks attached to each side of the carrier, which moves the plate from the 
exposing position to the opening immediately over the receiving magazine. 
The gear wheels are revolved by a quadrant gear 995 shown in Fig. 7. 






Type “X” Aviation Camera 15 



Figure 7 















































16 


Type “L” Aviation Camera 


AUTOMATIC CHANGING BY MEANS OF THE PROPELLER 

51. The flexible shaft is attached to the worm spindle 661, which is 
revolved at a high rate of speed by the force of the air on the propeller. 
Power is transmitted from the worm to the worm gear 993 which in turn 
revolves the intermittent gear on the left hand side No. 597, until the 
gap in the teeth is opposite the driving pinion. A stud No. 672 attached 
to the intermittent gear is connected by an adjustable link, consisting of 
units 874, 652 and 651, to a rocking arm 592, pivoted on the same spindle 
as the quadrant. When the shutter setting lever pin 653 is screwed 
through the hole in the center of the rocking arm, quadrant gear is thus 
locked to it and is moved by the link the required distance. 

52. Depressing the releasing plunger on the outside of the shutter 
setting operating plate, exposes the plate and automatically throws gear 
wheel 597 into mesh again. This action is fully described later. 

53. To change to hand operation. First, revolve the flexible shaft 
attached to the worm until the driving pinion 677 is in a free position op¬ 
posite the gap in the intermittent gear 597. Now, remove the shutter set¬ 
ting lever pin 653 (Fig. 2) from the rocking arm and insert it through 
the hole in the operating plate and screw into the tapped hole provided 
for the purpose in the intermittent gear. The hand lever is attached 
rigidly to the quadrant by the screws 683 and may be operated, the 
sliding changer being moved direct through the gears and racks. 

SHUTTER MECHANISM 

54. Referring first to Fig. 7. 

55. Slotted lever 589 is operated by a pin on the plunger sliding in 
the shutter setting lever plate. The spindle on which this slotted lever is 
mounted passes through the bearing in the camera body and carries a 
bell crank 593, shoAvn in Fig. 8. This figure is a cross sectional drawing 
illustrating the focal plane shutter 870, safety shutter 831, and inter¬ 
locking gear. 

56. The escapement wheel 594 is fastened to a shaft which is driven 
by the intermittent gear 597. The escapement wheel is timed in such a 
way that the aperture is positioned opposite a rib on the bell crank at the 
same time as the intermittent gear is moved to its free position. It will be 
apparent that the bell crank cannot be moved unless the escapement 
wheel is in this position. 

57. When the bell crank is moved toward the center of the escape¬ 
ment wheel the stop pin on this wheel passes under the crank, due to the 
influence of a spring pressing on the intermittent gear. The downward 
movement of the crank frees the escapement wheel and thus allows it to 
make one revolution. The bell crank at the same time lifts the safety 
shutter by means of an adjustable link 700, while the final movement 
releases the shutter operating gear latch No. 704. This allows the focal 
plane shutter 870 to fly back under the tension of a spring in the shutter 
rollers. To re-wind the focal plane shutter, a cam 695 is secured to the 
spindle carrying the gears, which are operated by the quadrant 995. 




Type “L" Aviation Camera 17 



Figure 8 












































18 


Type “ L ” Aviation Camera 


DISMANTLING 

58. It is a simple matter to take the camera to pieces, being chiefly 
dependent on careful manipulation of screw driver and spanner, but the 
correct way is to do it in such a manner that the minimum amount of 
time is required afterwards to reassemble and put it in working order. 

59. Screws, nuts, washers, pins, etc., should be placed together in a 
receptacle to prevent being lost. Valuable time is often wasted looking 
for small missing parts. Taper pins must be reinserted at once in their 
respective parts. 

60. To remove the shutter setting operating plate 587, first dis¬ 
connect the hand lever by removing the three nuts at the bottom end and 
then unscrew the three screws around the edge of plate. 

61. The adjustable link, consisting of units 874, 652 and 651, in the 
gear box are set to the correct length before leaving the factory and should 
not be interfered with unless the fitting of new parts renders it absolutely 
necessary. 

62. The quadrant 995 is mounted on a spindle which passes through 
to the small gear box on the opposite side of the camera. The quadrant 
and spindle may be moved intact, first unscrewing the small screw in the 
opposite end of the spindle. 

63. Do not attempt to remove the worm gear before first detaching 
the lock nut inside the camera on the shoulder screw. The shutter tension 
should be fully released before dismantling. 

ASSEMBLING 

64. The intermittent gear, escapement wheel and bell crank 
should be erected first, in the order mentioned. Next, replace the worm 
gear, locking it in position by the nut before mentioned. Quadrant and 
rack gears may now be fitted, also the adjustable link, lastly, the worm 
spindle. 

65. Timing the Rack Gears. Before laying the sliding changer, 
carrying the racks, in position, see that the prick punch mark on one of the 
teeth of the quadrant lines up with a corresponding mark on the pinion 
meshing with same. Place the changer at its extreme position at the left 
side of camera, the right end being tilted slightly above the gears, then 
with a screw driver or similar object, take up the back lash of these gears, 
and drop changer into position. 

66. Timing the Shutter Gears. Set the crank 663 in position for 
top tension. Wind the whole of the shutter on to tension roller and hold 
it there while replacing the shutter frame. The action of dropping the 
shutter frame into the center opening will move the shutter operating gear 
595 through the fraction of a revolution sufficient to give it the correct 
amount of lead. Now, move the tension lever in a clockwise direction, 
removing the stop screw for this purpose. This will take up any slack in 
the shutter. 

67. If all the gears have been correctly timed, the sliding changer 
will be held against the end stop when at rest, and the first movement of 





Type ‘ k L” Aviation Camera 


19 


the hand lever will cause the changer to slide l /i" to Y% before picking up 
the blind. This should be tested before replacing the top cover plate. 

68. Incorrect Timing may cause: 

(1) The sliding changer to stop before it reaches the end 
of its travel at either end. In one case the plates may 
fail to drop into position, and in the other case, the 
flat indicator on top of the cover plate, will not record 
correctly. 

69. (2) The focal plane shutter to commence to move at the 

same time as the sliding changer. This means that 
the shock of stopping the shutter will be taken by the 
driving gears, which will in consequence be damaged 
sooner or later. 


70. (3) Focal plane shutter to commence to move too late. 

In this case, sliding changer will reach the end of its 
travel before the focal plane shutter is fully re-wound. 


71. These points will be avoided if the timing instructions are fol¬ 
lowed accurately. 

LUBRICATION 


72. The main spindles through the body of the camera move com¬ 
paratively slowly, and if properly greased when the camera is erected, 
require no further attention. 

73. The following, however, should be lubricated periodically: 


74. 

(a) 

Ball bearings on worm spindle and teeth of worm 
wheel. Vaseline is best for this purpose. 

75. 

(b) 

Propeller journal. A grease cup is provided for this 
purpose. 

76. 

(c) 

Plunger spindle. A few’ drops of light machine oil. 

77. 

(d) 

Pivots and pins in the gear box should be oiled 
periodically. 



DON’TS 


78. (1) Don’t load septums with plates that are so thick that they 

have to be crowded into the septum, or plates that will not 
fully clear the upturned lip at the open edge. 

79. (2) Don’t attach the magazine until the sliding changer is in 

the back position. 

80. (3) Don’t open loaded magazine until it is in position. 

81. (4) Don’t withdraw’ magazines while open. 

82. (5) Don’t use bent or damaged septums. 

83. (6) Don’t try to take photographs without tension on the 

shutter, and see that tension lever is locked in required 
position by spring knob. 



20 


Type “L” Aviation Camera 


84. (7) Don’t depress the plunger with the setting lever pin out of 

position. 

85. (8) Don't operate the hand lever like a pump handle. Move 

it backwards and forwards to extreme positions once only 
for each exposure. 

86. (9) Don’t use a left hand propeller for a forward drive or 

vice versa. They give opposite rotations. 

87. (10) Don’t tie knots in the cable release. It will not work 

with kinks in the casing. 

88. (11) Don’t use a 10" screw driver on a small screw or a 6" 

spanner on a small nut. Proper tools for the purpose Anil 
be found in the repair kit. 

89. (12) Don’t use the magazine guide bracket as a carrying 

handle. It was not designed for that purpose. 

90. (13) Don’t attempt to straighten a propeller blade if it has 

become bent. If a propeller becomes injured, discard it for 
a new one. 



Part List on Type “L” Aviation Camera 


21 



Unit No. Per 

No. Description Camera 

85 Shutter Adjusting Holder Slide . 1 

96 Lock Ring for Lens Adjusting Sleeve. 1 

258 Sleeve Protecting Ring. 1 

605 Magazine Holder Frame Plate . 1 

607 Magazine Holder Screw .18 

608 Exposure Indicator Top Plate. 1 

609 Exposure Indicator Assembly Screw . 4 























22 Part List on Type “L” Aviation Camera 



Unit No. Per 

No. Description Camera 

569 Mag. Holder Outside Slide-Lower . 1 

570 Pin for Castle Lock Nut. 1 

571 Septum Complete . 1 

573 Scr. for Mag. Guide Pad . 2 

579 Hand Exposure Lever Knob. 1 

580 Magazine Complete. 2 

581 Short Magazine Release Lever with Stop Stud . 1 

582 Long Magazine Release Lever with Stop Stud. 1 

583 Exposure Base Plate Assembly . 1 































Part List on Type “L” Aviation Camera 



Unit No. Per 

No. Description Camera 

5 72 Hand Exposure Lever Assembly. 1 

584 Case Assembly. 1 

587 Shutter Setting Operating Plate with Bearing. 1 

















Part List on Type “L” Aviation Camera 


n 



Unit No. Per 

No. Description Camera 

577 Mag. Slide Frame Bed—Formed . 1 

590 Septum Support Assembled. 2 

591 Fan Bearing Sleeve with Oil Cup. 1 

592 Connecting Rod Crank with Stud . 1 

593 Bell Crank Assembly . 1 

594 L. H. Gear Shaft Wheel with Pin. 1 

595 Shutter Operating Gear R. H. Complete. 1 

611 Mag, Slide Frame Bed—Plain. 1 





















25 


Part List on Type “Z” Aviation Camera 



586 


Unit No. Per 

No. Description Camera 

585 Lens Adjusting Sleeve Complete.1 

586 Shutter Frame Assembled.1 

588 Shutter Plate R. H. with Bracket .1 

589 Fork Crank Assembled .1 
















26 


Part List on Type “L” Aviation Camera 



Unit No. Per 

No. Description Camera 

596 Shutter Operating Gear L. H. Complete.1 

597 L. H. Gear Assembled .1 

598 Oil Plate.1 

599 Shutter Setting Lever Complete .1 

723 Lens Adapter Screws .5 

992 Mag. Guide Pad .1 

997 Magazine Guide Assembly.1 



















Unit 

No. 

613 

614 

615 

616 

617 

620 

621 

622 

624 

625 

626 

627 

628 

629 


Part List on Type “L” Aviation Camera 27 



No. Per 

Description Camera 

Propeller Shaft Bracket .1 

Propeller Shaft Bracket Clamp.1 

Screws for Flexible Shaft Anchor & Propeller Shaft Bracket 6 

Propeller Shaft Bracket Clamp Screw Nut.4 

Lock Washers.7 

Shutter Operating Plate Screws .3 

Operating Plate Spring Screws .2 

Operating Plate Spring.1 

Shutter Setting Gear Screw Nut.3 

L. H. Gear Case Plate .1 

Screw for L. H. Gear Case Plate & Shutter Setting Shaft... 6 

Hand Shutter Oper. Plunger Button.1 

Hand Shutter Oper. Plunger Screw Nut.1 

Hand Shutter Oper. Plunger Screw.1 




















Part List on Type “Z” Aviation Camera 


28 


630 

631 

=» 

632 


{' . V/~V - T< 

1 ° * 

O 

640 ~ 


637 

639 

_tt_•. 


641 


9 

646 

4 

647 

V 

648 

© 

649 

^36=3 

O 



651 

652 


653 


V 


5=e= 

654 

656 


660 


Unit No. Per 

No. Description Camera 

630 Hand Shutter Oper. Plunger Stud .1 

631 Hand Shutter Oper. Plunger Shaft.1 

632 Hand Shutter Oper. Plunger Spring.1 

637 Magazine Holder Outside Slide—Upper .1 

639 Screws for Mag. Slide Frame Bed, Shutter Plate Assem. & 

Mag. Guide A%sem.24 

640 Camera Frame End Right .1 

641 Camera Frame End Left .1 

646 Septum Holder Spring Screws.2 

647 Magazine Holder Frame Plate Screw short.8 

648 Crank Stud Cotter Pin.7 

649 Crank Stud Cotter Pin Washer .3 

651 Connecting Rod Top.2 

652 Connecting Rod Lock Nut.2 

653 Shutter Setting Lever Pin.1 

654 Flexible Shaft Anchor. 1 

656 Flexible Shaft Anchor Spring.1 

660 Worm Gear Stud.1 





























Part List on Type “L” Aviation Camera 


29 



669 


© 

662 


665 


678 


663 



666 


679 


680 682 


684 



686 


688 


Unit 

No. 

661 

662 

663 

664 

665 

666 
669 

678 

679 

680 
682 
684 
686 

687 

688 


No. Per 

Description Camera 

w . 1 

Worm Bearing & Fan Bearing . 

L. H. Gear Shaft Crank. 1 

Locking Pin. 

Locking Pin Spring . 1 

Septum Holder Spring. 

L. H. Gear Shaft. 1 

L. H. Gear Shaft Crank Stop Screw . 1 

Gear Shaft. 1 

Shutter Setting Shaft Washer. 2 

Taper Pin. ^ 

Shutter Setting, Gear Shaft. 

Magazine Operating Gear Right. 

Magazine Operating Spring. 1 

Screw for Magazine & Shutter Oper. Spring. 2 





























Part List on Type “L” Aviation Camera 


SO 



Unit No. Per 

No. Description Camera 

690 Magazine Operating Gear Pinion. 1 

695 Shutter Operating Gear Cam . 1 

696 Shutter Operating Spring. 1 

697 Flexible Shaft. 1 

700 Safety Shutter Connecting Rod. 1 

704 R. H. Shutter Operating Gear Latch. 1 

705 Spring For R. H. Shutter Oper. Gear Latch. 1 

706 Safety Shutter Spring. 1 

713 Safety Shutter Hinge Washer. 1 

714 L. H. Gear Spring —Large . 1 
















31 


Part List on Type “L” Aviation Camera 



Unit 

No. Description 

715 L. H. Gear Spring—Medium. 

716 L. H. Gear Spring Screw. 

717 L. H. Gear Spring Nut. 

720 Magazine Holder Slide—Plain side 
722 Counter Wheel Complete. 

724 Magazine Lever Screw. 

725 Magazine Holder Stop. 

726 Magazine Operating Gear—Left. .. 

727 Worm Thrust Bearing . 

729 Counter Cover. 

730 Hand Lever Link.. 

731 Hand Exposure Lever. 


No. Per 
Camera 
.. . 1 
.. . 2 
. . . 1 
.. . 1 
.. . 1 
.. . 2 
. . . 2 
.. . 1 
. . . 1 
.. . 1 
. . . 1 
. . . 1 

























32 Part List on Type “L" Aviation Camera 


b 

732 


if 

733 


736 


v* 

737 


« 

738 


730 


740 

743 



741 


744 


742 


» 

745 


« 

746 747 748 


Unit No. Per 

No. Description Camera 

732 Exposure Lever Knurled Nut . 1 

733 Hand Lever Stud Screw . 1 

736 Hand Lever Spring . 1 

737 Hand Lever Spring Screw. 1 

738 Pawl Stud. 1 

739 Pawl. 1 

740 Exposure Indicator Base. 1 

741 Pawl Spring . 1 

742 Counter Detent Spring. 1 

743 Counter Detent Screw. 1 

744 Pins for Pawl Spring. 1 

745 Counter Stud. 1 

746 Hand Lever Stud. 1 

747 Washers for Counter Stud & Hand Lever Stud. 2 

748 Top Washer for Hand Lever Stud. 1 























ss 


Part List on Type “L” Aviation Camera 



749 750 751 



754 755 756 


757 



759 ^61 


tv f v 

762 764 769 


Unit 


No. Per 


No. 

749 

750 

751 

754 

755 

756 

757 

759 

761 

762 
764 
769 


Description 


Camera 


Exposure Pawl. 

Hand Lever Guide Assembly .. 

Screw, Cable Anchor Base Plate & Safety Shutter Hinge Bkt. 

Exposure Counter Lever. 

Camera Anchor Straps. 

Anchor Strap Screws. 

Nut for Anchor Strap Screw—Hand Lever Link—& Flexible 

Shaft Anchor Screw. 

Cable Anchor Base Plate. 

Anchor Dowels.'. 

Hand Lever Link Stud. 

Cable Anchor Knurl Screw. 

Exposure Lever Screw. 


1 

1 

4 

1 

2 

4 

8 

1 

2 

1 

1 

1 





















4 

Unit 

No. 

770 

771 

774 

775 

776 

777 

778 

780 

781 

783 

787 

799 


Part List on Type “L” Aviation Camera 


0 

770 


771 


\ 

774 


v 

775 


776 


* 

777 


778 


f 

780 


781 


782 


0 

787 


f 

799 


No. Per 

Description Camera 

Locking Pin Button. 1 

Counter Cover Screw . 4 

Frame Assembly Screw—Long. 7 

Exposure Indicator Dial Screw. 1 

Exposure Indicator Pawl Screw. 1 

Exp. Indicator Detention Screw. 1 

Shutter Plate Left H. 1 

Screw for Shutter Gear. 1 

Screw for Shutter Gear —Left. . 1 

L. H. Shutter Gear. 1 

Washer for Dial Detention. 2 

Exposure Lever Pin. 1 



















Unit 

No. 

800 

801 

802 

803 

804 

805 

806 

812 

813 

814 

815 

816 


35 


Part List on Type “L” Aviation Camera 


-SL 4 

SOO 801 



802 


£ 

SOS 804 


805 


806 812 


O 

814 815 


m 

813 


816 


No. Per 

Description Camera 

Exposure Detention Spring. 1 

Pawl Pin. 1 

Exposure Lever Spring. 1 

Exposure Pawl Spring. 1 

Exposure Pawl Pin. 1 

Pin for Exp. Detention & Lever Spring. 2 

Exposure Detention . 1 

Fan Connection Shaft. 1 

Fan Connection Shaft Spacer. 1 

Fiber Washer No. 1. 1 

Flange Collar Large . 1 

Fan Connection Retaining Collar. 1 






















36 Part List on Type “ L ” Aviation Camera 


817 


818 


819 


L 


w O 

820 821 


829 830 





I 833 





@ 

822 



831 


* ® 

837 839 


f/n# No. Per 

No. Description Camera 

817 Flange Collar Small. 1 

818 Shoulder Washer No. 1 . 1 

819 Castle Lock Nut. 1 

820 Fan Tension Spring. 1 

821 Fiber Washer N. 2. 1 

822 Shoulder Washer No. 2. 1 

829 Front & Back Cap Set Screw.. 2 

830 Pinion & Gear for Shutter Assembly. 1 

831 Safety shutter Assembly. 1 

833 Magazine Slide Frame. 1 

837 Oil Cup Cap. 1 

839 Fan Connection Thrust Bearing. 1 
























Part List on Type “L” Aviation Camera 


37 



Unit No. Per 

No. Description Camera 

843 Shutter Adjusting Cord . 1 

869 Cable Complete. 1 

870 Focal Plane Shutter Complete. 1 

874 Connecting Rod Complete.. 1 

876 Cable Clip. 1 













38 


Part List on Type “L” Aviation Camera 


845 


846 


847 


848 


852 


853 


858 


864 


I 

865 



Unit No. Per 

No. Description Camera 

845 Magazine Operating Shaft Bushing. 2 

846 Shutter Operating Shaft Bushing. 1 

847 Safety Shutter Oper. Shaft Bushing. 1 

848 Shutter Setting Shaft Bushing. 1 

852 Propeller Shaft Bracket Strap. 2 

853 Propeller shaft Bracket Strap Bolt. 4 

858 Magazine Release Lever Latch Spring. 2 

864 Lock Ring Screw Short. 2 

865 Lock Ring Screw Long. 2 

867 R. H. Propeller Complete. 1 

868 L. H. Propeller Complete. 1 






















Unit 

No. 

881 

885 

886 

887 

891 

893 

895 

899 

975 

97C 

977 

979 

981 


Part List on Type “X” Aviation Camera 39 



No. Per 


Description Camera 

Exposure Indicator Set Pin. 1 

Magazine Release Lever Screws. 2 

Counter Set Button. 1 

Counter Set Button Rivet. 2 

Shutter Frame Locating Pin. 1 

Lock Ring Spanner Wrench. 1 

Lens Focus Plate. 1 

Adapter Lock Screws. 3 

Exposure Indicator Dial Assembly. 1 

Nut for Worm Wheel Screw. 1 

Worm Wheel Washer. 1 

Pawl Stop Pin. 1 

Exposure Indicator Light Guard. 1 






















40 

Unit 

No. 

974 

982 

’ 985 

986 

987 

988 

990 

993 

995 

2175 

9655 

10569 

11155 

13662 


Part List on Type “L” Aviation Camera 



995 


988 

2175 9655 10569 


11155 13662 


No. Per 


Description Camera 

Light Guard Packing No. 1. 1 

Identification Plate. 1 

Connecting Link with Chain. 1 

Light Guard Packing No. 2. 1 

Washer for Shutter Oper. Gear L. H. 1 

Light Guard Packing No. 3. 2 

Filter. 3 

Worm Wheel with Pinion. 1 

Shutter Setting Gear Complete. 1 

Screws for Name Plate, Lens Focus Plate & Oil Plate. 8 

Identification Plate Rivet. 2 

Exposure Pawl Detention & Spring Pin. 2 

Rivet for Shutter Opr. Gear L. H. 4 

Name Plate. 1 
































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